Patents by Inventor Loraine M. Klein

Loraine M. Klein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7348459
    Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethybutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converted 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: March 25, 2008
    Assignee: The Nutrasweet Company
    Inventors: Jerry R. Ebner, Zhi Guo, Arnold Hershman, Loraine M. Klein, William D. McGhee, Mark D. Paster, Indra Prakash
  • Patent number: 7164049
    Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converting 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: January 16, 2007
    Assignee: The Nutrasweet Company
    Inventors: Jerry R. Ebner, Zhi Guo, Arnold Hershman, Loraine M. Klein, William D. McGhee, Mark Paster, Indra Prakash
  • Patent number: 6803487
    Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converting 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: October 12, 2004
    Assignee: The Nutrasweet Company
    Inventors: Jerry R. Ebner, Zhi Guo, Arnold Hershman, Loraine M. Klein, William D. McGhee, Mark Paster, Indra Prakash
  • Publication number: 20040006247
    Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converting 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
    Type: Application
    Filed: March 27, 2003
    Publication date: January 8, 2004
    Applicant: The Nutrasweet Company
    Inventors: Jerry R. Ebner, Zhi Guo, Arnold Hershman, Loraine M. Klein, William D. McGhee, Mark D. Paster, Indra Prakash
  • Publication number: 20030229254
    Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converting 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
    Type: Application
    Filed: May 29, 2003
    Publication date: December 11, 2003
    Applicant: The Nutrasweet Company
    Inventors: Jerry R. Ebner, Zhi Guo, Arnold Hershman, Loraine M. Klein, William D. McGhee, Mark D. Paster, Indra Prakash
  • Patent number: 6573409
    Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and sulfuric acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hvdrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converting 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: June 3, 2003
    Assignee: The Nutrasweet Company
    Inventors: Jerry R. Ebner, Zhi Guo, Arnold Hershman, Loraine M. Klein, William D. McGhee, Mark D. Paster, Indra Prakash